Deka vs. Absolyte Batteries [RE-wrenches]

[Bill Roush]

Never a known problem with a Concorde. I once set some in the
unconditioned warehouse for a year (I was going to 'top them off
periodically', of course), and after the year had passed they still
showed 12.5+ volts or so, memory a little foggy hear on the exact
number.  They are only pricy if you don't count the vent caps,
equalizations, testing, acid caution, shipping concerns, total lack of
customer maintenance, and tons of aggravation caused by flooded
batteries.  I won't sell flooded batteries because I don't want
customers coming back unhappy.

Best,
Bill Roush


 



-----Original Message-----
From: Joel Davidson [mailto:joeldavidson at earthlink.net] 
Sent: Monday, February 10, 2003 10:41 PM
To: RE-wrenches at topica.com
Subject: Re: Deka vs. Absolyte Batteries [RE-wrenches]

Concorde makes a nice battery. Has anyone with a PV system ever had a
problem
with Concorde batteries? If so, what?

"Jeffery Wolfe, Global Resource Options" wrote:

> Jeff,
>
> We seem to have had good success with the Concorde batteries. Pricey,
but in
> the one off-grid case where we beat them up REALLY hard, most of them
have
> come back into good shape. (Drastically over discharged several times,
now
> in a good charging regime.) In our other applications, all on grid,
we've
> had no problems, but no good quantitative data to report either.
>
> I'm sticking with the Concorde just because my "feeling" is they are
> performing well.
>
> 2 cents for what it's worth.
>
> Jeff
>
> -----Original Message-----
> From: Jeff Yago [mailto:jryago at earthlink.net]
> Sent: Monday, February 10, 2003 4:02 PM
> To: RE-wrenches at topica.com
> Subject: RE: Deka vs. Absolyte Batteries [RE-wrenches]
>
> Several weeks ago I had a post explaining that we were ready to order
> a replacement battery bank for a total off grid solar home (no
> generator and no grid) having a 4.8 kW array.
>
> Brad Bassett and Dan Duffield we kind enough to reply, but we still
> have some concerns on which sealed battery to purchase.  The owner is
> disabled, and wanted a zero maintenance battery, which was leading us
> to a Gel or AGM type stacked battery, at 1,500 amp-hr @ 48 volt.
>
> Several responses indicated that both would be very good for a "float"
> standby application, but on a daily cycling application, some battery
> brands stand out.  Based on a known history of loads, the above
> battery size should help to keep the daily discharge to about 30% on
> average, which should improve battery life.
>
> Several wrenches have indicated that the Deka Unigy II is a lower cost
> choice, but may have a positive plate growth problem in a daily
> charge/discharge application, and suggested that the GNB Absolyte or
> C&D HD series might provide better life.  I read a study that
> indicated the GNB Absolyte had a very low discharge rate for extended
> storage, but that really does not apply here and this is not a "float"
> application.
>
> The main reason we were strongly considering the Daka Unigy II, was
> because they have a large distribution center within 20 miles which
> saves on shipping and handling costs (they can ship direct to job site
> and unload for us!), but I do not want to have an early battery bank
> failure because we tried to save the client a few dollars.
>
> Any final thoughts and past experience would be appreciated.
>
> Jeff Yago
>
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